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Finding the Fourth Proportional to 353,088.48, 487,271.61 and 191,954.46

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Solution

The fourth proportional to 353,088.48, 487,271.61 and 191,954.46 is: 264,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,088.48 : 487,271.61 = 191,954.46 : x
  2. Step 2: Convert to fraction form
    353,088.48/487,271.61 = 191,954.46/x
  3. Step 3: Cross multiply
    353,088.48x = 487,271.61 × 191,954.46
  4. Step 4: Simplify right side
    353,088.48x = 93,533,958,770.88
  5. Step 5: Solve for x
    x = 93,533,958,770.88/353,088.48
  6. Step 6: Final answer
    x = 264,902.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.